Perhaps you should try some spelling variations:
wang liang » wang yang
heat gain » health gain, health gains, wheat grains
yan liang » yang liang, you liang, yan wang
yan guan » yan yuan, yang guang, yihan guan
gan guan » quan guan, fan guon, gui guan
yang jin » yang jie, yang jun, ying jin
hai » hadi, haji, hari

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wai ((yan guan) OR (gan guan)) heat gain ((((yan liang) or (wang liang))) or (yang jin)) dang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wai ((yan guan) OR (gan guan)) heat gain ((((yan liang) OR (wang liang))) OR (yang jin)) dang hai ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wai ((yan guan) OR (gan guan)) heat gain ((((yan liang) or (wang liang))) or (yang jin)) dang hai ;".
• Adding a wildcard symbol may retrieve word variants: wai ((yan guan) OR (gan guan)) heat gain ((((yan liang) or (wang liang))) or (yang jin)) dang hai ;*.